Fossilized Dinosaur Hadrosaur Egg 120 Million Years Old

You are considering a very attractive, top quality, genuine dinosaur egg of teh species hadrosaurus dating to 60-120 million years ago. This museum quality fossil has been in a uk private collection for over 20 years. The hadrosaur was a duck billed dinisaur that became extinct over 60 million years ago.

Diameter of actual egg 6 inches. The fossilized egg is sold together with a portion of the surrounding nest. A certain percentage of these eggs actually contain fertilized embryos which can be displayed by bissecting the egg, or less invasively by x-raying the specimen. This is what wikipedia has to say about this dinosaurthe hadrosaurs are known as the duck-billed dinosaurs due to hte similarity of their head to that of modern ducks. In some genera, most notably anatotitan, the whole front of teh skull was flat and broadened out to form a beak, ideal for clipping leaves and twigs from the forests of asia, europe and north america. However, the back of the mouth contained literally thousands of teeth suitabel for grinding food before it was swallowed.

Hadrosaurs, like their iguanoodntian cousins, had a rudimentary dental specialisation analogous to incisors and molars. Thsi has been hypothesized to have been a crucial factor in the success of this group in the cretaceous, compared to the sauropods which were still largely dependent on gastroliths for grinding their food. Hadrosaurids were the first dinosaur family to be identified in north america, the first traces being found in 1855-1856 with the discovery of fossil teeth.

Joseph leidy examined the teeth, and erected the genera trachodon and thespesius (others included troodon, deinodon and palaeoscincus). One species wsa named trachodon mirabilis. Now it seems that the teeth genus tarchodon is a mixture of all sorts of cerapod dinosaurs, including ceratopsids.

In 1858 the teeth were associated with leidy's eponymous hadrosaurus foulkii, named after the fossil hbobyist william parker foulke. More and more teeth were found, resulting in even more (now obsolete) genera.

A very well-preserved complete hadrosaurid specimen (edmontosaurus annectens) was recovered in 1908 by the fossil collector charles hazelius sternberg and his three sons, in converse county, wyoming. Analyzed by henry osborn in 1912, it has come to be known as the trachodon mummy. This specimen's skin was almost completely preserved in the form of impressions. Lawrence lambe erected the genus edmontosaurus (lizard from edmonton) in 1917 from a find in the lower edmonton formation (now horseshoe canyon formation), alberta. Hadrosaurid sytsematics were a mess until 1942, when richard swann lull and nelda wright proposed the genus anatosaurus. Cope's famous mount at the amnh became anatosaurus copei. In 1975, anatosaurus was mvoed to edmontosaurus, because the species were just too similar to the edmontosaurus type species, e. Regalis and bceause edmontosaurus was older, it had precedence. The original sample was probably a young edmontosaurus. One former antaosaurus species was distinct enough from edmontosaurus to be placed in a separate genus, named anatotitan, so in 1990 the amnh mount was re-labelled anatotitan copei. This egg is completely genuine and unrestored. It carries a full money back guarantee as described. Listed as a bargain no reserve auction, commencing at less than $1! Shipipng usa $60 europe $45 uk $35 row $120. Winning bidder click button on right to checkout now. Andale andalecheckout put your best picture forward. Try venido image hosting.

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